Is it possible to upgrade directly to Debian stretch (9) from my running OS?

It seems to me that my B3 is not running as well as in past. I use it as NAS with two connrcted USB Drives.

If yes I have two more questions.
Shall # remain in the install.ini for settings to be installed or in other words are comments signed by ## opposit to -for instance- the samba smb.conf file where a line starting with # is a comment.

Hi
I tried to use this to upgrade my bubba, have been ignoring the fact that the excito os hasnt been supported for a while, but now when I needed to change disk (due to a crash) I thought I could just as well use a fresh image.

However, I run into some issue. The log seems fine, or almost fine, there is an error in the middle. However, the install seems to progress in spite of this

EDIT: I tried the default disk size and then upped to 2000 (G) and it works!
So it has something to do with the disk size. Either the full setting is not working properly or something gets too big for some system part at 2.7TB, but not at 2.0TB

It's likely that U-Boot doesn't like too large ext3 filesystems. You could try to flash to the rodeus version available at http://install.excito.org/b3/uboot/beta/ using the instructions on the wiki page you mentioned earlier. It's more recent so it may work. I don't have 3tb drive to test it.

Hi
It didnt help. In the end, I settled for a 10G boot partition and then added a "data partition" that I mounted on /home

It makes use of all the disk, and the main purpose of having all those 3TB was anyway for users data. Hopefully the 10G will always be enough for whatever services I want, as long as I keep the bulk of the data in /home